M42 turbo

[fumstoo]

So i think ive come to the conclusion that i need a 323i TOB. Im going to gather a mixture of TOBs to test when i get back with the car. I miss driving it.. The 535i is a total slug...

[wouterterstege]

What kind of wheel do you have?

[fumstoo]

The wheels on the e30 are xxr 527

[fumstoo]

GTX2867R. I think thats the final decision. Should spool pretty quick, be good for 20+psi and hold strong till redline.

Emailed VAC about some cams. Ill be back in Wy in may so ill be able to get the trans issue sorted.

Oh, and ive been spending a lot of time researching tuning. So when I get back im going to tune the car for 15psi on the current setup

[wazzu70]

Thats a decent choice. The BW EFR is still a much better turbo though IMO. The Garrett uses 90s era turbine design.

You can't go wrong with the Garrett though, but you could go "righter" with an EFR 6258 or 6758.

[fumstoo]

The only issue is my manifold is an external gate. If i capped it off i feel like that would affect the flow of the gases. Am I wrong?

[wazzu70]

It would have a slight impact on the manifold flow.

Then again you can always disable the IWG on the Borg

[fumstoo]

Can you explain how thats done? Or link me? Ive researched it a bit but I cant find one way that seems legit. Damn the internet and all of the bad information on it.

[wazzu70]

You just lock the actuator arm. Basically lock the flap shut.

That or sell your external gate and put the money toward the new turbo (and WG cap).

Since you already have an external gate, you may just want to go Garrett. Its unfortunate BW does not offer an external gate housing in T25 flange.

[fumstoo]

That turbo wont hold if i rev till 8k. Still havent heard back from vac about the cams though.. So as soon as i figure that out i can pick a turbo..

Do you think factory lifters are good for 8k? Or should I go for vw lifters?

So ive done some reading and i think hydraulic lifters should be good for 8k. The vw lifters are lighter but im unsure which of the two are stronger.

[wazzu70]

I dont have a difinitive answer on the lifters, but I am working on that now. MM uses the early M50tu lifters because they have a stiffer internal spring on engines with a 7700 rev limit. To go higher you most likely need solid lifters.

On the VW lifters I would test the spring rate of the internal spring. This is more important than weight. A lightweight assembly is no good if it collapses under high revs.

[fumstoo]

So i replaced my pivot pin and swapped my spacer from the front to the back of the flywheel. Its hard to tell the difference but i hope it fixed the issue.. I did go and drive the car a little bit last night. Tried out the new lsd too. couple donuts and burnouts  Clutch seems stiffer. I wasnt worried until later in the night when it wouldnt go into gear. had to shut the car off and put it in first.

[fumstoo]

did a burnout in an empty parking lot yesterday and got a careless driving ticket  but the cars running fine and it was a smokey burn out 

[fumstoo]

It looks like I never stated what was causing my trans issues. I put the clutch in backwards............ 



Now that thats settled. Tested some tires today.

275/40/17






and 245/40/17






If i run the 275s i need to pull more and stiffer springs. The 245s will probably need to be dropped a little more.

[E36-italia]

and such small brakes behind the spokes.. brrr ;-)